Description


Page : 1177

Sondrestrom Lidar Operation Log


Operator(s) : E.Guðmundsson
Purpose : Routine data collection in conjuction with Timed and Saber pass
Date(s) : 030225 - 030225
File(s) : L20030225_000 - L20030225_002
Comments :
Logfile : l0302250.log

Setup:0


Page : 1178
[Variables]
Dye Power=120mJ
Rayleigh Power=460mJ

[0]
Iris=min_opening
Rayleigh System=On
Rayleigh path attenuation=0dB
Dye System=On
Etalon=Out
Daystar=Out
Polarizer=In
HalfWave Plates=Tracking
Rayleigh Filter=2:532(.5nm)
Rayleigh seeding=off

Logsheet:0


Page : 1179

Sondrestrom Lidar Operation Log


Log Sheet 1 of 1
Operators : E.Guðmundsson
Date(s) : 030225 - 030225
File(s) : L20030225_000 - L20030225_002
FilesTime [UT]CommentsCntSOpe
L20030225_00002:51:45Start of experiment9870EG
L20030225_00105:50:40Sdoium system tuned9630EG
L20030225_00105:50:51Rayeleigh HG tweeked for the hell of it9630EG
L20030225_00105:51:53Counts11320EG
L20030225_00105:54:36very thin cirrus at 10km starting to be visible in the beam9390EG
L20030225_00106:06:42Radar started at 05:58UT7060EG
L20030225_00106:35:21Bad trigger0EG
L20030225_00106:35:28I set the scope up to aquire timing jitter and it appears as 10680EG
if the ARCLITE program unit is emitting triggers out of
timing as I could see after this bad trigger that program unit
supplyed a bad trigger . Next step to see if this is also the
case from the chopper circuit. Looks like this method will
do the trick in isolating the source of the bad triggers.
L20030225_00106:46:19Cirrus gone for the moment11570EG
L20030225_00208:23:25Pausing data aq for chopper characterization setup0EG
L20030225_00208:29:14Starting chopper function acqusition1670EG
L20030225_00208:41:23Ending chopper function acq.0EG
L20030225_00208:41:43End of experiment0EG